First, think about what makes your superhero stand out. Maybe it's a never-before-seen power or a really compelling origin story. Also, consider their moral code and how they'll interact with the world. It's all about creating a character that people will root for.
DC Comics' inaugural superhero was Superman. His appearance marked a significant milestone, shaping the direction of superhero comics. Superman's strength, moral code, and popularity have endured over the years.
Definitely not. Besides DC and Marvel, there are indie publishers and smaller companies that produce superhero comics. For instance, Boom! Studios has some superhero titles. Also, there are comics from different countries with their own unique takes on superheroes.
It's a tough call, but some might say Doctor Manhattan from the Watchmen universe within the DC Comics framework is incredibly powerful. His manipulation of matter and perception of time gives him a significant edge.